We use the \(\textsf {HiggsSignals}\_\textsf {v1.4.0}\)  package [1]} to estimate the \(\chi ^2\)  of a given model and assess which sample points are allowed by the signal strength measurements.
The package assumes a Gaussian probability distribution and uses the peak-centered method for the calculation
of \(\chi ^2=\chi _{\mu }^2+\chi _{m}^2\) , where \(\chi _{\mu }^2\)  is evaluated by comparing the signal strength measurements for the peak to the model-predicted signal strengths and \(\chi _{m}^2\)  is evaluated by comparing the model-predicted Higgs boson mass and the observed one if a mass measurement is also available [1]}.
The signal strength measurements used in the \(\textsf {HiggsSignals}\)  analysis are summarized in table REF .
